Forging-machine rolls



APPLICATION FILED MAR. 14, 1919.

L. J. BERKELEY. FORGING MACHINE ROLLS.

Patented Nov. 30, 1920.

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FORGING MACHINE ROLLS.

APPLICATION FILED MAR. I4. 1919.

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LAURENCE J. BERKELEY, OF MILWAUKEE, WISCONSIN, ASSIGNOR T HERCULES MANU#FACTURING COMPANY, OF RACINE, WISGDNSIN, A CR-PQRATION OF WISCONSIN.

rondine-ammirata noms.

Specification of Letters Patent.

Application filed March 14, 1919. Serial No. 282,679.

To all who/m. t may concern.'

Be it known that I, LAURENCE J. BERKE- LEY, citizen of the UnitedStates, residing at Milwaukee, in the county of Milwaukee l and State ofWisconsin, have invented certain new and useful Improvements inForging-Machine Rolls, of which the following is a specification,reference being h ad to the accompanying drawing, forming a partthereof.

This4 invention relates more particularly to the construction of rollsfor forging spike blanks or bodies and similar articles.

-Itsniain objects are to facilitate chang- -i ing parts of the rolls forforging spike bodies or other articles of different lengths or sizes; tofacilitate the construction and replacement `of parts subject to mostrapid wear without removing the rolls from the machine or from theirbearings; to avoid the tendency of the blanks as they pass the rolls tocurl and follow one of the rollsyand generally to improve theconstruction and operation of forging rolls of this class. E

It consists in the construction, arrangement and combination of parts ashereinafter particularly described and pointed out in the claims.`

f In the accompanying drawing like characters designatethe same parts inthe several figures. i Figure 1 is an end elevation of a pair of forgingmachine rolls constructed in accordesV ance with the invention; Fig. 2is a side ele-v vation of one of the rolls and an axial section ontheline 22, Fig. l, of the other roll; Fig. 3 is an end elevation, andFig. 4: is a side elevation of a cheek ring forming a part of each roll;Figs. 5 and 6 aie reverse end ele-Q vations of a sectionaldie ringforming a part of each roll; Fig.`7 is a side `elevation of the diering; and Fig8`is a section, similar to y that ofFig; 2,'showing amodification.

As shown in Figs. l and 2, two rolls of the same or substantially thesame construction,

are mounted on approximately parallel axes,

and form at their meeting sides a pass of the desired shape and size incross section, of the {spike bodies or y other articles to be formed,the parts of one of the rolls being reversed relative to thecorresponding parts of the other roll.

f Each roll comprises a shaft 1, formed or provided `with a collar 2,and a cylindrical seat 3, coaxial with `the shaft and collar, a

to facilitate its removal from and replace` ment in the roll withoutremoving the roll from its bearings.

The inner end of the ring Lkwhicli is placed next to the collar 2, isformed, as shown in Figr, with radial slots 10, to receive the pointingand cut-off blades 7, which` bear at their inner ends against the seat3, and project at their outer beveled ends befyond the peripheralworking face of the ring. y

In its outer end, which is of reduced diameter, the ring l is formed, asshown in Fig. 5, with square pockets l2, into which the outer sides ofthe slots l() open. i

The cheek ring 6, which is made of chilled cast iron and is accuratelyground or faced to fit a shoulder and annular recess formed therefor inthe end of the collar 2 next to the die ring 4, is `formed `in oppositesides as shown in Figs. 3 and fl, with cored cleavage openings 14, intowhich a wedge is driven after the ring is finished, to split it into twoparts or sections, forming with each other at the ends, closely matingor matching joints, which will not inar or mark the spike bodies orother articles. The bore of the ring 6 is cast with projections 16, asshown in Fig. 3, to avoid unnecessaryv grinding or finishing in ttingthe ring to the roll.

The inner end of the ring 6, which is next to the die ring l and blades7 and forms one side of the pass between the rolls, is `slightly taperedor `beveled outwardly at an angle, say, of two degrees to a planeperpendicular to the axis of the roll, so that the axes of the rolls maybe crossed horizontally at. an angle twice that of the taper or bevel ofthe working face of the ring, and the spike blanks or bodies or otherarticles, as they leave the pass in which they are formed between therolls, will be relieved from the side pressure of` the cheek rings andwill be delivered straight from the rolls, the tendency, which mightotherwise occur, `of the spike Patented Nov. so, 1920.

blanks or bodies or other articles as they are delivered from the rolls,to curl around and follow eithenof the rolls, being thus avoided.

The outer end of the ring 6 may be tapered or beveled, as shown in F ig.2, say at an angle of about five degrees to a plane perpendicular to theaxis of the roll, and the face of the collar 2 against which it fits,correspondingly beveled, to assist in holding the ring securely in placein the annular recess of the collar, the beveled face of the recessslightly overhanging itsV cylindrical face or the shoulder on which thebore of the ring is fitted and seated.

The die ring 4, cheek ring 6, and the blades 7, are securely fastenedtogether and held in place as a unit on the roll, by the clamping ring 5and bolts 18, passing through the several rings and the collar 2parallelV with the axis of the roll, and by set screws 20 passingloosely through holes in the ring 5, threaded in nuts 21 held in thepockets 12 of the die ring 4, and engaging at their inner ends kwith theblades 7.

'i By constructing the `cheek rings 6, which are subjected to more rapidwear than other parts of the rolls, of chilled cast iron, and breakingthemafter they are finished and just before they are placed in a forgingmachine, into separately removable sections, they can be cheaply andeasily replaced Without removing the rolls'from their bearings,4 andlcannot be mismated.

VBy constructing the die ring 4 in sections, and assembling andfastening them with the pointing and cut-off blades 7 on the rollsbytheclamping rings 5, bolts 18 and set .screws'20, as shown anddescribed, the die rings and pointing and cut-ofi' blades may be readilyremoved and replaced by other die rings and blades for forming spikeblanks or bodies or other articles of different lengths, sizes orshapes, without removing the rolls from their bearings. lVorn Vordefective parts can also be readily renewed or replaced in like manner.

The clamping rings 5 may be made in halves or sections, but this is notnecessary except tofacilitate replacing broken or defective clampingrings.

' Referring to Fig. 8, the die ring 4 may be extended at the endopposite the slots 10 beyond the nut pockets 12 and tapered as shown,and may be fastened with the cheek ring 6 against the collar 2 and onthe shoulder 3 of the shaft 1, by means of a flanged clamping ring 5fitting over the tapered end of the ring and a wedge or cotter 22and gib23, inserted in a transverse slot .24 formed in the shaft.

-v With this construction the fianged clamp.- ing ring 5 is preferablymade continuous or in one piece,so as to confine the halves or Vsectionsof the die ring 4 together on the shaft 1, and the set screws 20 whichfasten the cut-off blades 7 in place, are made longer Vand pass looselythrough holes formed therfor in the die ring parallel with its axis andintersecting the nut pockets 12.

In both the constructions shown, the cheek ring is held against turning.or slipping on the collar 2 by a pin or lug 25, fastened in the lcollarand engaging a notch in the ring, as shown in Figs. 2 and 8.

Various changes in the details of construction and arrangement of partsof the rolls other than those shown and described, may be made withoutdeparture from the principle and scope of the invention as defined inthe following claims.

1. A forging machine roll comprising a supporting collar and a sectionalchilled cast metal cheek ring formed with broken mating joints at theends of the sections and removably mounted on the collar.

2. A forging machine roll comprising a supporting collar and a chilledcast metal cheek ring removably mounted on the collar and formed withtransverse and radial cleavage openings at which it is broken throughthe sides into sections having close fitting oints at their mating ends.

3. A forging machine roll comprising a supporting collar and a chilledcast metal cheek ring formed with a slightly beveled side working faceand broken into sections which are removably fitted and secured on thecollar and form closely matching joints with each other at the ends.

4. A forging machine roll comprising a shouldered supporting collarhaving a beveled face overhanging its shoulder and a chilled cast metalcheek ring fitting the shoulder and beveled face of the collar andbroken transversely into separately removable sections which formclosely matching joints. Y

5. ln a forging machine roll the combination with a shaft provided witha collar, of a die ring composed of separately removable sections andformed in one end with radial slots and in the other end with pockets,blades fitted in said slots and projecting therefrom beyond theperiphery of said ring, nuts held in said pockets, a clamping ringbearing against the outer end of the` die ring, bolts passing throughthe several rings and the collar and securing them together, and setscrews passing loosely through the clamping ring, threaded in said nutsand engaging with said blades.

6. In a forging machine the combination of a pair of rolls eachcomprising a shaft provided with a collar having an annular recess, achilled cast metal cheek ring fitting into said recess and brokentransversely, after it is faced, into separately removable sectionswhich form closely matching joints with each other, e die ring fittingat one end against the coller, extending outwardly beyond the bore ofthe cheek ring and oomposed of separately removable sections, a clampingring fitting against the opposite end of the die ring, and bolts passingthrough the several rings and the colla-r and securing them in placetogether, the die rings and cheek rings forming a pass on the adjacentsides of the rolls.

In Witness whereof I hereto aix my sig nature.

`LAURENCE J. BERKELEY.

